Acta Cryst. (2003). E59, o716-o717  [ doi:10.1107/S1600536803008535 ]

4,11-Bis(4-chlorophenyl)-3,10-bis(2,6-dichlorophenyl)-1,8-dioxa-2,9-diazadispiro[4.1.4.4]pentadeca-2,9-dien-6-one

X.-F. Li, Y.-Q. Feng, H. Xiao-Fen and X. Mian

Abstract: The title compound, C₃₅H₂₄Cl₆N₂O₃, which was synthesized by the [3  +  2]-cycloaddition of 2,6-dichlorobenzonitrile oxide and 2,7-bis(4-chlorobenzylidene)cycloheptanone, contains two independent molecules in the asymmetric unit. Three rings are linked by two spiro-C atoms. The cycloheptanone ring adopts a chair conformation and the two five-membered isoxazoline rings have envelope conformations.

Online 30 April 2003

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